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vaieri [72.5K]
3 years ago
6

HELP PLEASE PLEASE Heeelp

Mathematics
2 answers:
shutvik [7]3 years ago
7 0

Answer:

12

Step-by-step explanation:

Sloan [31]3 years ago
5 0
Answer to your question is 1/6
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The number of right-handed students in a math class is nine times the number of left-handed students. The total number of studen
nirvana33 [79]
R - Right Handed 
L - Left Handed 

R = 9L ( the number of right handed kids is equal to having 9*number of left handed kids) 
9L + L = 30  ( since total number of people in class is 30) 
10L = 30 
( Divide by 10 both sides )
L = 3 

so... There are 3 Left Handed kids and 27 Right Handed kids ( since R = 9L , R = 9(3) = 27)

Hope this helped!
5 0
2 years ago
Quadratic equations Please Help Me!!!!!!
igor_vitrenko [27]

The roots are 1 +√7 and 1 -√7.

<h3>What is Quadratic equation?</h3>

A quadratic equation in the variable x is an equation of the form ax² + bx + c= 0, where a, b, c are real numbers, a≠0

Given equation:

y= x²+2x-6

First,

Half the coefficient of x and add and subtract the square of (b/2)

y= x²+2x-6+(1)²-(1)²

y= x²+2x+(1)² -6 -(1)²

y= (x+1)² -7

Now, equate y=0

(x+1)² -7 =0

(x+1)² = 7

x+1= ±√7

x=1 ±√7

Hence, the roots are 1 +√7 and 1 -√7.

Learn more about quadratic equation here:

brainly.com/question/1962219

#SPJ1

7 0
1 year ago
Joana alugou um carro para fazer uma viagem de 36km sabendo q o carro percorre 12 km cm 1litro custa
saul85 [17]

Answer:

3 litros

Step-by-step explanation:

Joana alugou um carro para fazer uma viagem de 36km sabendo que o carro percorre 12 km cm 1 litro custa

Da pergunta:

12 km = 1 litro

36km = x

Cross Multiply.

12x = 36 × 1

x = 36/12

x = 3 litros

7 0
3 years ago
What is the value of x if e3x+6=8
jarptica [38.1K]

Answer:

x=ln(2)/3

Step-by-step explanation:

e^3x+6=8

e^3x=8-6

e^3x=2

ln(e^3x)=ln(2)

3x=ln(2)

x=ln(2)/3

3 0
3 years ago
The tail of a kite is 1.5 feet plus twice the length of the kite. Together, the kite and tail are 15.5 ft long. Find the length
Ivan

Answer:

We know that the kite with the tail is 15 feet and 6 inches. While 6 inches is 0,50 foot, it's 15,5 feet. If the lenght of the kite is x, then:

15,5 = x + 1,5 + 2x

15,5 = 3x + 1,5     / - 1,5 (both sides)

14 = 3x             / : 3 (both sides)

x ≈ 4,66

The kite is approx .4,66 feet long. It means that the tail is about 15,5 - 4,66 = 10,84 feet long.

5 0
3 years ago
Read 2 more answers
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